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Which of the following is/are the function of gibberellins?
a) promote flowering                         
b) helps in growing seedless grapes
c) improves storage life of banana     
d) all of these

d

Cytokinins act along with…….to cause cell division in plant tissue culture.
a) auxin                                  
b) gibberellins
c) ethylene                  
d) abscisic acid

a

Which of the following phyto hormones prevent senescence in leaves by stimulating protein synthesis?
a) gibberellins             
b) auxin
c) cytokinin               
d) abscisic acid

c

Which of the following phyto hormone causes bud dormancy and seed dormancy?
a) gibberellins             
b) auxin
c) cytokinin                
d) abscisic acid

d

Which of the following plant hormone concentration increases during stress condition like drought which causes the stomata to close?
a) gibberellins             
b) auxin
c) cytokinin                
d) abscisic acid

d

Which of the plant hormone/s is/are the gaseous hormone/s?
a) ethylene                 
b) a cytokinin 
c) auxins                                 
d) gibberellins

a

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